Interchangeable grain thresher and huller



W. N. RUMELY & W. C. ROBBY.

INTERCHANGEABLE GRAIN THRESHER AND HULLER.

APPLICATION FILED AUG. 17, 191 4.

Patented Apr. 4,1916.

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WILLIAM N. RUMELY AND WILLIAM C. BOBBY, 0F SYCAMOBE, ILLINOIS, ASSIGNORS TO ILLINOIS THRESHEB. COMPANY, OF SYCAMORE, ILLINOIS, A CORPORATION OF ILLINOIS.

INTEROHANGEABLE GRAIN TI-IBESI-IER AND I-IULLER.

Specification of Letters Patent.

Patented Apr. a, rare.

Original application filed November 20, 1913, Serial No. 802.020. Divided and this application filed August T 0 all whom it m (27 concern:

Be it known that we, WILLIAM N. RUM- ELY and lViLLIaM C. BOBBY, citizens of the United States, residing at Sycamore, in the county of'Dekalb and State of Illinois, have invented a new and useful Improvement in Interchangeable Grain Threshers and Hullers. of which the following is a specification.

This invention relates to improvements in interchangeable grain threshers and hullers, and the same is a division of our earlier application Serial No. 802020, filed Nov. 20, 1913.

One object of the invention is to provide a grain thresher or separator which may be readily changed and adapted for hulling clover, alfalfa and the like.

Another object of the invention is to provide a thresher or separator of large capacity and so arranged that all the chaff and grain therewith which falls from the straw rack shall be returned to the forward end of the chaffer and compelled to traverse the entire length thereof to thereby insure the entire separation of the grain.

Another object of the invention is to so arrange the return floors that the chaff and grain mingled therewith shall be thoroughly separated and loosened each time before it is acted upon by the chaifers.

Another object of the invention is to providea removable section in the return floor which is used to conduct clover and alfalfa to the h'ulling mechanism, said removable section being so located that when taken out, the material is not fed to the hulling mechanism.

The invention furthermore consists in the improvements in the parts and devices and in the novel combinations of the parts and devices as herein shown,- described or claimed.

In the drawing forming a part of this specification, Figure 1 is a longitudinalsectional view of one form of apparatus embodying our improvements.. Fig. 2 is an enlarged detail view showing the arrangement of adjustable chatler and Fig. 3 is a detail view showing the removable floor section.

In said drawing the frame of the machine is designated generally by the reference 10 and-mounted thereon at the forward end is a cylinder 11, concave l2 and elevating rake Serial No. 857,090.

' neath the straw rack 17 and substantially coextensive therewith is a return floor 18 which is adapted to return the chaff and grain in termingled therewith which falls through the straw rack, to the forward end of the machine and to throw it down onto the chafler 19, the latter having a downwardly inclined floor portion 20 which extends forwardly beneath the concave l2 and the elevating rake 13 and between the threshing cylinder and balling-mechanism hereinafter described. To the rear of the floor portion 20, and beneath the return'floor .18, the

chaffer 19 is provided with an adjustable chafl'er-section 21, described more in detail hereinafter.

Beneath the chafl'er 19 is a second return floor 22, the forward end of which is lo-' cated directly above the rasp cylinder 23 cooperable with a huller concave 24 which together constitute the hulling mechanism. Beneath the return floor 22 is "another chatter 26 having a solid floor portion27 extending to the hulling mechanism and adapted to receive the material therefrom, said chafier having an adjustable chatter portion 28 similar to the portion 21 of the chaffer 19. Below the chalfer 26 is a third adjustable chaffer 29 and beneath the latter is a cleaning shoe 30 and sieve 31. A fan 32 of usual construction is employed and the grain is collected by the main auger 83 and the tailings are carried by the tailings auger 3%.

Each adjustable chaffer preferably comprises a plurality of pivoted slats 35 all pivotally connected to an adjusting rod 36 held in position by bolt and nuts 37, 38, as shown most clearly in Fig. 2.

As shown in dotted lines in Fig. 1 and also in Fig. 3, the return floor 22 is provided with a removable floor section 39 held in place by any suitable means such as a piv-' oted cross bar 40 and brackets 41 secured to the underside of the main portion of the return floor. Just forward of the opening in the return floor 22 that receives the removable floor section 39, and below the return floor, is a pivoted fall board 42, the function of which is to prevent the grain and chaff which falls through the opening in the floor 22,- when. the machine is being used for threshing grain, from getting into the hulling mechanism. When the machine is being used for hulling purposes this board will be moved or removedto avoid interfering with the material coming from the hulling mechanism- A fixed deflectorplate43 is also provided to insure the clover and alfalfa being deposited on the chatter 26 as they come from the hulling mechanism.

When the machine is being used for separating grain, the floor section 39 will be taken out; and the grain as it comes from the chaffer 19 will be thrown forward by the return'floor 22 and dropped through the opening therein onto the chafier 26,whereupon it will be thrown to the rear of the machine and separated by the chaifer and screens in the usual manner.

When the machine is to be used for hulling clover and alfalfa, the floor section 39 will be secured in place, and the rasp cylinder 23 connected by suitable driving mechanism with the source of power (not shown) so that the clover and alfalfa, as theyfall through the chaffer 19 onto the return floor 22 will be fed by the latter to the hullingmechanism where the clover and alfalfa will be hulledand thrown ontothe chaffer 26 and the material separated in the usual manner. The openings in the various chaffers will be adjusted to accommodate the different materials being treated.

From the foregoing description, it will be i seen that we have provided .a single apparatus which may beinterchanged and adapted for use either as a grain separator or .as a

huller, the change of parts and adjustments thereof being so few-and simple that the same may be made, in actual practice, in a very few minutes.

By making the return floor 18 of the same lengthas the straw rack 17 or of such length as to return all the material which falls through the straw rack, to the chaffer 19 at a pointin front of the openings therein, we insure a completeseparating and loosening of the materials before being acted upon by the chafler, and in this way the capacity of the apparatus is materially increased. The return floor 22 is alsoconstructed so that all the materials are dropped on the chafler 26 at a pointin front of the open portion.

thereof. By inclining the forward end of the chaifer 19 where it passes between the threshing and milling mechanism, we are enabled to'keep the threshingjcylinder low enough down to be easily accessible to the operator. 7

Although we have herein shown and de-- scribed what We now consider the preferred embodiments of our improvements, yet it will be understood that various changes and i modifications may be made in the parts and I arrangements thereof without departmg from the spirit of the invention, and all such changes and modifications are contemplated as come within the scope ofthe claims appended hereto.

We claim 1. In a convertiblethresherand hullery the combination with a cylinder, associated concave and straw rack, of a return; floor below and substantially co-extensive with,

said rack, a chafi'er below said return floor extending from a point below the cylinder to: i

the rear end of the return floor, a return floor beneath said chafiler, hulling mechanism'to which said last named return floor is adapted to feed. material, a chaflie'r be.

neath said last named return'fioor, and adapted to receive the material from the hulling mechanism, said last mentioned return floor b'eingadapted to transfer material I being treated directly to. the last named chaffer instead of being fed to the hulling mechanism, substantially as specified.

2. In a convertible thresher and huller,

the combination with a cylinder, associated concave and straw rack, of a return floorbelow and substantially co-extensive With said:

rack, a chaffer below said return floor extending from a point below the cylinder to the rear end: of the return: floor, a return.

floor beneath said chafler, hulling -mecha-. nism to which said last named returnflo'or is adapted to feed material, a chaffer beneath said last named return floor and; adapted toreceive the material from the hulling mechanism, said last mentioned2return fioorincluding a-removable floor secetion to permit the material being treated to be transferred therefrom to the last-named;

chatter instead of to the hulling mechanism.

3. Aconvertiblethresher and huller having a rack, return floor, chaffer below the" return floor, hullingmechanism below. the chafi'er, a sieve, a device for e ect1ngseparated grain and hulled clover, alfalfa and? the like out of said thresher and huller, and 5 a member for directing unhulled clover and alfalfa to said huller and for directing sepaa rated grain to said ejectingde'vice and past said huller; substantially as specified.

4. Aconvertible-thresher land huller having a straw rack, chafler, return floor beneathsa1d chafler, hulling mechanlsm, a

chafl'er below said return floor, said return a floor being adapted to convey the material 1 said return floor adapting the material to be dropped from the return floor to the last named chafier when said section is removed, substantially as specified.

5. A convertible thresher and huller having, in combination: a threshing cylinder, hulling mechanism located below and to the rear of the threshing cylinder, and a chafi'er having its forward end inclined downwardly and passing between the hulling mechanism and the threshing cylinder and beneath the latter to thereby permit of the threshing cylinder being placed in a low position, substantially as specified.

6. A machine of the character described including in combination: hulling mechanism, a return fioor having a removable section therein and adapted to convey the materials to said hulling mechanism, and a movable partition located below said return floor and forward of the removable section there in, said partition being adapted to prevent the materials which fall throu h the return floor when said section is removed, from getting into the hulling mechanism, substantially as specified.

Signed this 12th day of Aug, 1914, in the presence of two witnesses.

WILLIAM N. RUMELY. WILLIAM C. BOBBY.

Witnesses:

P. B. MoINTYRE, I. M. MITCHELL.

Copies 0! this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

